Fuel pressure control using hysteresis pump drive
US5507266A · kind A · utility
28Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1994 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Fuel pressure in a deadheaded fuel rail is regulated by an eddy current clutch that forms part of the mechanism that mechanically couples the engine crankshaft with a fuel pump which delivers pressurized fuel to the rail. An electric control that receives several inputs, including engine speed and fuel rail pressure, controls the degree of coupling that is provided by the clutch so that the pressure is regulated even though the engine speed and fuel demand change during normal engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.